参数资料
型号: DSPIC33FJ256MC510T-I/PF
厂商: Microchip Technology
文件页数: 3/136页
文件大小: 0K
描述: IC DSPIC MCU/DSP 256K 100TQFP
产品培训模块: Asynchronous Stimulus
标准包装: 1,000
系列: dsPIC™ 33F
核心处理器: dsPIC
芯体尺寸: 16-位
速度: 40 MIP
连通性: CAN,I²C,IrDA,LIN,SPI,UART/USART
外围设备: 欠压检测/复位,DMA,电机控制 PWM,QEI,POR,PWM,WDT
输入/输出数: 85
程序存储器容量: 256KB(256K x 8)
程序存储器类型: 闪存
RAM 容量: 16K x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 3.6 V
数据转换器: A/D 24x10b/12b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 100-TQFP
包装: 带卷 (TR)
配用: MA330013-ND - MODULE PLUG-IN DSPIC33 100TQFP
DV164033-ND - KIT START EXPLORER 16 MPLAB ICD2
DM240001-ND - BOARD DEMO PIC24/DSPIC33/PIC32
AC164323-ND - MODULE SKT FOR 100TQFP
100
4235K–8051–05/08
AT89C51RD2/ED2
24.6.4
Bootloader Functionality
The bootloader can be activated by two means: Hardware conditions or regular boot process.
The Hardware conditions (EA = 1, PSEN = 0) during the Reset# falling edge force the on-chip
bootloader execution. This allows an application to be built that will normally execute the end
user’s code but can be manually forced into default ISP operation.
As PSEN is a an output port in normal operating mode after reset, user application should take
care to release PSEN after falling edge of reset signal. The hardware conditions are sampled at
reset signal falling edge, thus they can be released at any time when reset input is low.
To ensure correct microcontroller startup, the PSEN pin should not be tied to ground during
power-on (See Figure 24-4).
Figure 24-4. Hardware conditions typical sequence during power-on.
The on-chip bootloader boot process is shown Figure 24-5.
VCC
PSEN
RST
Table 24-6.
Bootloader Process Description
Purpose
Hardware Conditions
The Hardware Conditions force the bootloader execution whatever BLJB,
BSB and SBV values.
BLJB
The Boot Loader Jump Bit forces the application execution.
BLJB = 0 => Bootloader execution
BLJB = 1 => Application execution
The BLJB is a fuse bit in the Hardware Byte.
It can be modified by hardware (programmer) or by software (API).
Note: The BLJB test is performed by hardware to prevent any program
execution.
SBV
The Software Boot Vector contains the high address of customer bootloader
stored in the application.
SBV = FCh (default value) if no customer bootloader in user Flash.
Note: The customer bootloader is called by JMP [SBV]00h instruction.
相关PDF资料
PDF描述
P51-3000-S-W-I12-20MA-000-000 SENSOR 3000PSIS 1/8 NPT 4-20 MA
P51-75-G-L-I36-4.5OVP-000-000 SENSOR 75PSI M10-1.25 6H .5-4.5V
P51-100-G-W-I12-4.5V-000-000 SENSOR 100PSI 1/8-27NPT .5-4.5V
REC7.5-1205SRW/H2/A/M/CTRL CONV DC/DC 7.5W 9-18VIN 05VOUT
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dsPIC33FJ256MC710A-H/PF 功能描述:数字信号处理器和控制器 - DSP, DSC 16B MCU 40MIPS 256KB FLASH RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT
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